/* 电子发票申请系统 · 样式表（无外部依赖） */
:root{
  --primary:#2563eb; --primary-dark:#1d4ed8; --primary-soft:#eff4ff;
  --bg:#f4f6fb; --card:#ffffff; --border:#e5e9f2; --text:#1f2937;
  --muted:#6b7280; --faint:#9ca3af; --line:#f0f2f7;
  --ok:#15803d; --warn:#b45309; --danger:#dc2626;
  --shadow:0 2px 12px rgba(30,58,138,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--text);font:14px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0}
.muted{color:var(--muted)}.small{font-size:12px}.center{text-align:center}
.link{color:var(--primary)}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:20px;box-shadow:var(--shadow)}
.alert{border-radius:9px;padding:10px 14px;margin:0 0 16px;font-size:13px}
.alert-ok{background:#ecfdf5;color:#047857;border:1px solid #a7f3d0}
.alert-err{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}
.empty{padding:36px 16px;text-align:center;color:var(--faint)}
.big-ico{font-size:44px;line-height:1.3;margin-bottom:8px}

/* ---------- 表单基础 ---------- */
.f-label{display:block;font-size:13px;font-weight:600;color:#374151;margin:0 0 6px}
.input{width:100%;padding:10px 12px;border:1px solid #d7dce7;border-radius:9px;font-size:14px;background:#fff;color:var(--text);outline:none;font-family:inherit;transition:border-color .15s,box-shadow .15s}
.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
textarea.input{resize:vertical;min-height:74px}
select.input{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7280' stroke-width='1.6' fill='none'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}
.input-file{width:100%;font-size:13px;color:var(--muted)}
.input-file::file-selector-button{border:1px solid var(--border);background:#f8fafc;color:#374151;padding:8px 12px;border-radius:8px;margin-right:10px;cursor:pointer}
.help{font-size:12px;color:var(--faint);margin-top:5px}
.req{color:var(--danger);font-style:normal;margin-left:2px}
.field-err{color:var(--danger);font-size:12px;min-height:0;margin-top:3px}
.field-err:not(:empty){margin-top:5px}
.choice-list{display:flex;flex-wrap:wrap;gap:8px}
.choice{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);border-radius:9px;padding:7px 13px;font-size:13px;cursor:pointer;background:#fff;color:#374151}
.choice input{accent-color:var(--primary);margin:0}
.choice:has(input:checked){border-color:var(--primary);background:var(--primary-soft);color:var(--primary-dark)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.form-row{margin-bottom:14px;min-width:0}
.form-row.col-2{grid-column:1/-1}
.form-row.col-1{grid-column:span 1}

/* ---------- 按钮 ---------- */
.btn,.btn-primary,.btn-secondary,.btn-danger,.btn-sm{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:9px;cursor:pointer;font-family:inherit;font-weight:600;text-decoration:none;white-space:nowrap;transition:background .15s,transform .05s}
.btn:active,.btn-primary:active{transform:translateY(1px)}
.btn{padding:9px 16px;background:var(--primary);color:#fff;font-size:13px}
.btn:hover{background:var(--primary-dark);color:#fff;text-decoration:none}
.btn-primary{width:100%;padding:13px;background:var(--primary);color:#fff;font-size:16px;margin-top:8px}
.btn-primary:hover{background:var(--primary-dark)}
.btn-primary:disabled{background:#9ca3af;cursor:wait}
.btn-secondary{display:block;width:100%;padding:11px;background:#f1f5f9;color:#334155;font-size:14px;margin-top:18px}
.btn-secondary:hover{background:#e2e8f0;text-decoration:none}
.btn-danger{padding:7px 12px;background:#fef2f2;color:#b91c1c;font-size:12px;border:1px solid #fecaca}
.btn-danger:hover{background:#fee2e2;text-decoration:none}
.btn-ghost{padding:7px 12px;background:#fff;color:#374151;border:1px solid var(--border);border-radius:9px;font-size:12px;font-weight:500;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:5px}
.btn-ghost:hover{background:#f8fafc;text-decoration:none}
.btn-sm{padding:6px 12px;background:var(--primary-soft);color:var(--primary-dark);font-size:12px}
.btn-sm:hover{background:#dbeafe;text-decoration:none}

/* ---------- 表格 / 徽章 ---------- */
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow)}
table.tb{width:100%;border-collapse:collapse;font-size:13px;min-width:640px}
table.tb th{background:#f8fafc;color:#475569;font-weight:600;text-align:left;padding:11px 14px;border-bottom:1px solid var(--border);white-space:nowrap}
table.tb td{padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:middle;color:#374151}
table.tb tr:last-child td{border-bottom:0}
table.tb tr:hover td{background:#fafbfe}
.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:12px;font-weight:600;white-space:nowrap}
.st-pending{background:#fff7ed;color:#c2410c}
.st-processing{background:#eff6ff;color:#1d4ed8}
.st-done{background:#ecfdf5;color:#047857}
.st-rejected{background:#f3f4f6;color:#6b7280}
.badge-gray{background:#f1f5f9;color:#64748b}
.badge-green{background:#ecfdf5;color:#047857}

/* ---------- 车主提交页 ---------- */
.apply-body{background:linear-gradient(180deg,#eaf1ff 0%,#f4f6fb 240px,#f4f6fb 100%);min-height:100vh}
.apply-wrap{max-width:640px;margin:0 auto;padding:22px 14px 40px}
.apply-head{text-align:center;padding:14px 0 20px}
.apply-logo{width:50px;height:50px;border-radius:15px;background:var(--primary);color:#fff;font-size:25px;display:flex;align-items:center;justify-content:center;margin:0 auto 12px;box-shadow:0 6px 18px rgba(37,99,235,.28)}
.apply-head h1{font-size:21px;color:#111827;letter-spacing:.5px}
.apply-lot{font-size:13px;color:var(--muted);margin-top:5px}
.notice-card{background:#fffbeb;border:1px solid #fde68a;color:#92400e;border-radius:12px;padding:13px 16px;font-size:13px;margin-bottom:14px;white-space:pre-wrap}
.apply-wrap .card{padding:22px 20px}
.serial-box{background:#f8fafc;border:1px dashed #cbd5e1;border-radius:12px;padding:16px;margin:18px 0 4px}
.serial{font-size:22px;font-weight:700;letter-spacing:1.5px;color:var(--primary-dark);margin:4px 0 6px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.hint{font-size:13px;color:#475569;background:#f1f5f9;border-radius:9px;padding:10px 12px;margin-top:16px}
.privacy{text-align:center;color:var(--faint);font-size:12px;margin:12px 0 0}
.apply-foot{text-align:center;color:#b0b7c3;font-size:12px;padding:20px 0}
.card.center{padding:32px 22px}
.card.center h2{font-size:19px;margin-bottom:8px}

/* ---------- 后台布局 ---------- */
.admin{display:flex;min-height:100vh}
.sidebar{width:216px;flex:0 0 216px;background:#fff;border-right:1px solid var(--border);display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.sb-brand{padding:20px 18px 16px;border-bottom:1px solid var(--line)}
.sb-brand .t{font-size:15px;font-weight:700;color:#111827;display:flex;align-items:center;gap:8px}
.sb-brand .s{font-size:11px;color:var(--faint);margin-top:3px}
.sb-nav{padding:12px 10px;flex:1;overflow-y:auto}
.sb-nav a{display:flex;align-items:center;gap:9px;padding:9px 12px;border-radius:9px;color:#4b5563;font-size:13px;margin-bottom:3px;text-decoration:none}
.sb-nav a:hover{background:#f4f6fb;text-decoration:none}
.sb-nav a.active{background:var(--primary-soft);color:var(--primary-dark);font-weight:600}
.sb-nav .group{font-size:11px;color:var(--faint);padding:12px 12px 5px;letter-spacing:1px}
.sb-foot{padding:14px 16px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
.sb-foot .u{font-weight:600;color:#374151}
.main{flex:1;min-width:0}
.topbar{height:60px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:20}
.topbar .crumb{font-size:15px;font-weight:600;color:#111827}
.topbar .right{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted)}
.content{padding:22px 24px 50px;max-width:1280px}
.page-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.page-title h1{font-size:20px;color:#111827}
.page-title .desc{font-size:13px;color:var(--muted);margin-top:3px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px}
.stat{background:#fff;border:1px solid var(--border);border-radius:13px;padding:18px 20px;box-shadow:var(--shadow)}
.stat .n{font-size:26px;font-weight:700;color:#111827;line-height:1.2}
.stat .l{font-size:12px;color:var(--muted);margin-top:5px}
.stat .bar{height:3px;border-radius:3px;background:var(--primary);width:28px;margin-top:12px}
.stat.s2 .bar{background:#f59e0b}.stat.s3 .bar{background:#10b981}.stat.s4 .bar{background:#8b5cf6}
.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:14px}
.toolbar .input{width:auto;min-width:150px;padding:8px 11px;font-size:13px}
.toolbar select.input{padding:8px 30px 8px 11px}
.pager{display:flex;gap:6px;align-items:center;justify-content:flex-end;margin-top:16px;font-size:13px;color:var(--muted)}
.pager a{padding:6px 11px;border:1px solid var(--border);border-radius:8px;background:#fff;color:#374151;text-decoration:none}
.pager a.cur{background:var(--primary);color:#fff;border-color:var(--primary)}
.detail-list{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}
.detail-item{padding:11px 0;border-bottom:1px solid var(--line);min-width:0}
.detail-item .k{font-size:12px;color:var(--faint);margin-bottom:3px}
.detail-item .v{font-size:14px;color:#1f2937;word-break:break-all}
.detail-item.full{grid-column:1/-1}
.thumb img{max-width:150px;max-height:110px;border-radius:8px;border:1px solid var(--border);display:block;margin-bottom:4px}
.info-row{display:flex;gap:24px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-bottom:16px}
.info-row b{color:#374151;font-weight:600}

/* 字段设计器 */
.field-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px;margin-bottom:12px}
.field-card .fc-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.field-card .fc-title{font-weight:600;color:#111827;font-size:14px;display:flex;align-items:center;gap:8px}
.field-card .fc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.field-card .fc-grid .full{grid-column:1/-1}
.mini-label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
.mini-input{width:100%;padding:8px 10px;border:1px solid #d7dce7;border-radius:8px;font-size:13px;background:#fff;color:var(--text);outline:none;font-family:inherit}
.mini-input:focus{border-color:var(--primary)}
.checkline{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#374151;margin-right:14px;cursor:pointer}
.checkline input{accent-color:var(--primary)}

/* 二维码页 */
.qr-layout{display:grid;grid-template-columns:1fr 340px;gap:18px;align-items:start}
.qr-stage{background:#fff;border:1px solid var(--border);border-radius:14px;padding:26px;text-align:center;box-shadow:var(--shadow)}
#qrcode{display:inline-block;padding:14px;background:#fff;border:1px solid var(--border);border-radius:12px;min-height:230px}
#qrcode img,#qrcode canvas{display:block;margin:0 auto;image-rendering:pixelated}
.qr-url{background:#f8fafc;border:1px solid var(--border);border-radius:9px;padding:10px 12px;font-size:12px;color:#475569;word-break:break-all;margin-top:16px;text-align:left}
.qr-side .card{margin-bottom:14px}
.qr-tip{font-size:13px;color:var(--muted);line-height:1.9}
.qr-tip b{color:#374151}
.poster{background:#fff;padding:30px;text-align:center;border:1px solid var(--border);border-radius:14px}
.poster h2{font-size:23px;color:#111827;margin:12px 0 4px}
.poster .sub{color:var(--muted);font-size:14px;margin-bottom:18px}
.poster .step{font-size:13px;color:#475569;line-height:2;margin-top:16px}

@media(max-width:960px){
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .qr-layout{grid-template-columns:1fr}
  .field-card .fc-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  .admin{flex-direction:column}
  .sidebar{width:100%;height:auto;position:static;flex:none;border-right:0;border-bottom:1px solid var(--border)}
  .sb-brand{padding:12px 16px 10px}
  .sb-nav{display:flex;overflow-x:auto;padding:8px 10px;gap:4px}
  .sb-nav a{white-space:nowrap;margin:0}
  .sb-nav .group,.sb-foot{display:none}
  .topbar{padding:0 16px;height:52px}
  .content{padding:16px 14px 40px}
  .form-grid,.detail-list{grid-template-columns:1fr}
  .form-row.col-1{grid-column:1/-1}
  .stat-grid{gap:10px}
  .stat{padding:14px}
  .stat .n{font-size:22px}
  .apply-wrap{padding:16px 12px 30px}
}
@media print{
  .sidebar,.topbar,.qr-side,.page-title,.toolbar,.no-print{display:none!important}
  body{background:#fff}
  .content{padding:0}
  .qr-layout{display:block}
  .qr-stage{border:0;box-shadow:none;padding:0}
}